Question: What was the allegiance of Wernher von Braun at the beginning of 1937?
Paraphrase: In early 1937, what was the allegiance of Wernher von Braun?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q57384 p:P945 ?s . ?s ps:P945 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1937')) }